tftp [server IP] GET filename # Download file from server tftp [server IP] PUT filename # Upload file to server tftp [server IP] -i GET filename # Binary mode (for firmware, images) For most users on Windows 10: Download TFTPD64, run as Admin, set a base folder, and add a firewall rule for UDP 69 . It takes less than 2 minutes and works reliably for router config backups, firmware updates, and PXE booting.

A TFTP (Trivial File Transfer Protocol) server is useful for transferring files to network devices like routers, switches, IP phones, or for network booting (PXE). Unlike FTP, TFTP uses no authentication and is very lightweight.